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Virtual machine system and method of network communication between virtual machines

a virtual machine and network communication technology, applied in the field of virtual machine systems, can solve the problems of large number of processor resources left useless when the system is over, the vlan construction of the original machine system cannot always be re-constituted y the utilizable vlan constitution method, and achieve the effect of more flexibility

Active Publication Date: 2007-06-21
HITACHI LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0016] A virtual machine system according to the invention makes it possible to simultaneously constitute a plurality of machine systems utilizing VLAN constituted by different methods on one virtual machine system by using virtual machines, and has the advantage that the system can more flexibly cope with integration of a plurality of machine systems by virtual machines.

Problems solved by technology

When such a machine system having a large number of processors mounted thereto is utilized by a single OS, there remains the problem that a large number of processor resources are left useless when the system is idle.
In addition, the VLAN construction of the original machine system cannot always be re-constituted y the utilizable VLAN constitution method.

Method used

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  • Virtual machine system and method of network communication between virtual machines

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Embodiment Construction

[0027] The invention accomplishes by the following method the object that a plurality of machine systems utilizing VLAN constituted by different methods is simultaneously constituted on one machine system by using virtual machines. Namely, whether VLAN communication corresponding to VLAN ID set to a virtual network interface card is used or VLAN communication corresponding to VLAN ID set by OS on virtual machines using the virtual network interface card is used can be switched depending on whether or not VLAN ID is set to the virtual network interface card.

[0028] An embodiment of the invention will be hereinafter explained with reference to the accompanying drawings.

[0029]FIG. 1 is a conceptual structural view for illustrating an operation of a virtual machine system to which an embodiment of the invention is applied.

[0030] A control program 107 for constituting a plurality of virtual machines (hereinafter called “LPAR”) capable of utilizing a virtual network interface card (here...

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Abstract

A plurality of machine systems constituted by different VLAN constitution methods are integrated on one machine system by using virtual machines. An operation can be switched for virtual network interface cards to VLAN communication corresponding to VLAN ID set to a virtual network interface card or to VLAN communication corresponding to VLAN ID set by OS on a virtual machine using the virtual network interface card depending on whether or not VLAN ID is set.

Description

BACKGROUND OF THE INVENTION [0001] This invention relates to a virtual machine system for executing network communication between virtual machines by using a virtual network interface card. More particularly, the invention relates to a virtual machine system using VLAN for network communication between virtual machines. [0002] A multi-core processor having a plurality of processor cores packaged in one processor package has now made it possible to drastically increase the number of processors that can be utilized by one machine system. [0003] When such a machine system having a large number of processors mounted thereto is utilized by a single OS, there remains the problem that a large number of processor resources are left useless when the system is idle. One of the methods for improving utilization efficiency of the processor resources includes the steps of constituting a plurality of virtual machines by a control program on a machine system, allocating the processor resources of ...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/28G06F9/46H04L12/46
CPCH04L12/4645H04L45/586H04L49/354
Inventor MITOME, HIROYUKITSUSHIMA, YUJI
Owner HITACHI LTD
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